Wrench.



' N0. 636,673. Patented Nov. 7, I899.

4n. KLATT.

WRENCH.

(Application filed Aug. 26, 1899.)

(No Model.)

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REINl'IOLD KL'ATT, or STRONG CITY,

EPA-TENT FFlCE.

KANSAS, ASSIGNOR OF ONE-HALF TO THOMAS M. BRODERICK, OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 636,673, dated November7, 1899.

Application filed August 26, 1899. Serial No. 728,563. (No model.)

To all whom it may concern:

Be it known that I, REINHOLD KLATT, of Strong City, in the county ofChase and State of Kansas, have invented a new and Improved Wrench, ofwhichthe following is afull, clear,

and exact description.

The invention relates to wrenches having a fixed and a slidable jaw; andits object is to provide a new and improved wrench designed for use onpipes, nuts, and other objects, and arranged to permit, first, of aquick primary adjustment of the slidable jaw, and then an immediatefinal adjustment thereof to securely andfirmly engage the object.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described herein after and then pointed outin the claims.

A practical embodiment of my invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a sectional side elevation of the improvement. Fig. 2 is aback edge view of the same. Fig. 3 is a front edge view of the same, andFig. 4 is a sectional plan view of the same on the line f 4 in Fig. 1.

The improved wrench is provided with a fixed jaw A and amovable jaw B,fitted to slide on a shank or handle 0, carrying the fixed jaw A. On theworking side of the movable jaw B is pivoted a screw-rod D, on whichscrews a nut E, mounted to turn between, but held against longitudinalmovement on, the shoulders F of a locking-sleeve F, fitted to slide onthe shank or handle 0 adjacent to the movable jaw B. On the back edge ofthe shank O are formed teeth 0, adapted to be engaged by a locking-dogG,fulcrumed on the sleeve F and engaged by a lever H, likewise fulcrumedon the sleeve F and pressed on by a spring I, so as to normally hold thesaid lever and the dog G in the position shown in Fig. 1, the dogengaging one of the teeth 0, so as to prevent outward movement of thesleeve F and the movable jaw B, connected by the screw-rod D and the nutE.

In order to use the wrench, the operator presses the lever H to throwthe dog G out of engagement with the corresponding tooth 0 on the shankC to permit of sliding the sleeve the slidable jaw B is now made by theoperator turning the nut E so as to cause the bolt screw-rod D, and withit the jaw B, to move toward the object, as the outward movement of thesleeve F is prevented by the dog G engaging one of the teeth 0'. Thusthe movable jaw B is brought in firm engagement with the object undertreatment.

' When the wrench is used in the usual manner to turn the object, thestrain on the inclined working face of the movable jaw B causes a slighttilting thereof on the shank 0, whereby the pivot for the screw-rod D isrelieved of undue strain, the principal strain falling solely on thefixed jaw A, the movable jaw B, and the shank O, and consequently thesleeve F and the parts thereof are not subjected to undue wear. Inreleasing the object the operator first turns the nut E, so as to movethejaw B from the object, and then the operator presses the lever 11 toswing the dog G out of engagement with the teeth 0, to permit of movingthe 8 5 slide F,with the jaw B,outward on the shank C for completelyreleasing the object.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. A wrench, comprising a shank having a fixedjaw, a movable jaw fitted on said shank, a locking-slide fitted on saidshank and having a longitudinal opening in its front face and atransverse opening leading thereinto, 5 a screw-rod pivotally connectedwith the movable jaw and loosely inserted through the longitudinalopening in the locking-slide, a nut screwing on said screw-rod andfitted in the transverse opening in the slide, a locking- 10o dogpivoted around a fixed axis on the rear of the locking-slide and havinga lockingtooth on its free end, and a spring-pressed lever fulcrumed onthe looking-slide and engaging" said dog to operate the same, as and forthe purpose set forth.

2. In a wrench, the combination with a shank having teeth along its rearedge and a fixed jaw, a movable jaw fitted thereon, and a screw-rodpivotallyconneeted to said movable jaw, of a locking-slide separate fromsaid movable jaw and surrounding said shank, said slide having alongitudinal opening in which said rod is loosely received and spaced-

